gm: report ExpectationsMismatch and RenderModeMismatch results separately

gm/gmmain.cpp

Index: gm/gmmain.cpp
===================================================================
--- gm/gmmain.cpp	(revision 8534)
+++ gm/gmmain.cpp	(working copy)
@@ -272,7 +272,8 @@
         }
 
         // Things to do only if there is some error condition.
-        SkString fullName = make_name(name.c_str(), renderModeDescriptor);
+        SkString fullName = name;
+        fullName.append(renderModeDescriptor);
         for (int typeInt = 0; typeInt <= kLast_ErrorType; typeInt++) {
             ErrorType type = static_cast<ErrorType>(typeInt);
             if (errorCombination.includes(type)) {
@@ -996,9 +997,8 @@
         return kEmpty_ErrorCombination;
     }
 
-    ErrorCombination test_pipe_playback(GM* gm,
-                                        const ConfigData& gRec,
-                                        const SkBitmap& referenceBitmap) {
+    ErrorCombination test_pipe_playback(GM* gm, const ConfigData& gRec,
+                                        const SkBitmap& referenceBitmap, bool simulateFailure) {
         ErrorCombination errors;
         for (size_t i = 0; i < SK_ARRAY_COUNT(gPipeWritingFlagCombos); ++i) {
             SkBitmap bitmap;
@@ -1010,7 +1010,9 @@
             SkGPipeWriter writer;
             SkCanvas* pipeCanvas = writer.startRecording(
               &pipeController, gPipeWritingFlagCombos[i].flags);
-            invokeGM(gm, pipeCanvas, false, false);
+            if (!simulateFailure) {
+                invokeGM(gm, pipeCanvas, false, false);
+            }
             complete_bitmap(&bitmap);
             writer.endRecording();
             SkString string("-pipe");
@@ -1177,6 +1179,7 @@
 DEFINE_string2(resourcePath, i, "", "Directory that stores image resources.");
 DEFINE_bool(rtree, true, "Exercise the R-Tree variant of SkPicture test pass.");
 DEFINE_bool(serialize, true, "Exercise the SkPicture serialization & deserialization test pass.");
+DEFINE_bool(simulatePipePlaybackFailure, false, "Simulate a rendering failure in pipe mode only.");
 DEFINE_bool(tiledPipe, false, "Exercise tiled SkGPipe replay.");
 DEFINE_bool(tileGrid, true, "Exercise the tile grid variant of SkPicture.");
 DEFINE_string(tileGridReplayScales, "", "Space separated list of floating-point scale "
@@ -1459,7 +1462,8 @@
         ErrorCombination pipeErrors;
 
         if (FLAGS_pipe) {
-            pipeErrors.add(gmmain.test_pipe_playback(gm, compareConfig, comparisonBitmap));
+            pipeErrors.add(gmmain.test_pipe_playback(gm, compareConfig, comparisonBitmap,
+                                                     FLAGS_simulatePipePlaybackFailure));
         }
 
         if ((pipeErrors.isEmpty()) &&